Two weekends later: 10" of snow blanketed the yard. I spent Christmas Eve packing down a path with the lawn tractor so I could get lumber out to the "job site". After that I got the siding finished for the last two walls. The door is ordered and roof rollers are in progress.
I put the last two sides up by myself which took a little doing. But a little forethought saved me a ton of effort and got me to the point you see here. I put up full sheets and then cut the top of flush with the Sawzall.
This wall will have the drop section in it. I'll go back later and cut the siding to allow movement. Big hinges will take care of the mechanical needs.
A long break in the action! But I'm not finished.